Chaeles mccluee



(No Model.)

0. MCGLURE. DEVICE FOR INSERTING TUBES IN PNEUMATIC TIRES.

No. 591,607 Patented Oct. 12,1897.

WITNESSES (72 Z $2 20 1} a?" 45 are.

A Home ,4 Fri/W UNITED STATES PATENT OF ICE.

onAELEsMccLUEE, OF THE UNITED STATES ARMY.

DEVICE FOR INSER T ING TUBES IN PNEUMATIC TIRES.

SPECIFICATION forming part of Letters Patent No. 591,607, dated October 12, 1897. Application filed rem-u 20,1897. Serial No. 624,400. (No model.)

To aZl whom it may concern:

Be it known that I, CHARLES MOOLUEE, a citizen of the United States,'of the United States Army, have invented certain new and useful Improvements in Devices for Inserting Tubes in Pneumatic Tires; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to devices for insertin g tubes in pneumatic tires; and the object of the same is to provide a device whereby the inner tube may be quickly and readily positioned within the outer tube of the pneumatic tire.

The invention consists in the novel details of construction hereinafter fully set forth, claimed, and illustrated by the accompanying drawings, in which Figure 1 is an edge view of my device, partly in section. Fig. 2 is a perspective view of the same, and Fig. 3 is a similar view of the modification.

My device consists of the curved members 1 and 2, which when put together form a circular hoop with overlapping ends 3 and 4, which are provided with perforations 5 and 6. The outer face of the hoop is grooved circumferentially, as shown at 7, and the meeting end of one section is provided with a cavity 8, while the meeting end of the other section is provided with a metallic casing 9. Projecting from this casin g 9 is the spring 10, which is secured to the upper wall of the said casing. The free end of this spring is provided with a depending lug on its under side for the purpose of engaging the cavity 8 of the opposite section and uniting the sections. I provide strings or cords 12 in the perforations 5 and 6 of the respective sections, by means of which I attach the inner tubeto either end of the hoop. In placing the inner tube within the outer casing I attach the same to one end of the hoop, securing it in position by one of the cords 12, and push the hoop through the outer casing, as will be readily understood. Thus it will beseen that the inner tube is carried around within the outer casing by the hoop, and when thesame has been passed entirely around the cord 12 is disengaged and the hoop withdrawn. The

groove 7 prevents the inner tube from slipping from the hoop.

In Fig. 3 I provide the hoop in the single piece, which is cheaper in construction, but not so convenient when not in use as the first construction. This latter construction 'may be taken apart and packed for sale or when not in use so that the same takes up very little space.

It will be understood that I do not limit myself to a hoop formed in a single piece or in two members, as the same could be constructed in as many sections as desired.

From the above description it will be seen that I have produced a very neat, cheap, and efiective device for inserting the inner tube within the outer casing of a pneumatic tire.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A device of the character described comprising sections adapted to form a circle when united, the outer face of the sections being grooved, and a means for attaching the inner tube of the tire to the circular device whereby the said tire may be inserted within an outer casing, the same being prevented from slipping by the groove, substantially as shown and described.

2. A device. for inserting the inner tub within the outer casing of a pneumatic tire consisting in the groove members, one of said members provided with a cavity adjacent its end, a casing on the end of the other section, a spring secured within the casing and projecting therefrom, a lug carriedfby the end of said spring and adapted to engage the cavity of the other section for uniting the sections to form a hoop, and a means carried by the end of said hoop for attaching the inner tube thereto, substantially as shown and described.

3. A device for the purpose of inserting the inner tube within the outer casing of a pneumatic tire consisting of curved sections grooved circumferentially, one of said sections having a cavity near its end, a casing secured to one end of the opposite section, a projecting spring secured to said casing and provided with a depending lug on its free end whereby the sections may be united by the cavity-carrying end extending within the casing of the opposite section and secured therein by the engagement of the lug with the cavity and a means carried by the ends of the sections for attaching the inner tube of a pneumatic tire thereto substantially as shown and described.

4. A device for inserting an inner tube within a bicycle-tire, comprising a 1100p having its free ends overlapping and provided 10 with perforations, the said hoop being grooved circumferentially, and cords in said perforations for attaching the tube thereto, substantially as shown and described.

In testimony whereof I have signed this specification in the presence of two subscrib- I 5 ing witnesses.

CHARLES MCCLURE. \Vitnesses:

F. D. EVANS, JOHN GAKIN. 

